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Deep lateral rotators of the hip

Contents

Referred pain pattern

Piriformis and deep lateral rotators - pain pattern

Muscles involved

  • Gemellus superior
  • Obturator internus
  • Gemellus inferior
  • Obturator externus
  • Quadratus femoris

Symptoms

  • Entrapment of sciatic nerve
  • Paraesthesia in lower back, groin, buttocks
  • SI-joint dysfunction
  • Problems with and pain while defecating
  • Pain during sexual intercourse (female)
  • Impotence (male)

Videos

Short version

Detailed version

MyoFascial line

Deep ventral line

Additional Functional Muscles Supporting The Deep Ventral Line

Anatomy

Obturatoris Externus

Position

  • Deep

Origin

  • External surface of the obturator membrane
  • External surface of obturator foramen on os ischium and os pubis

Insertion

  • Trochanteric fossa femoralis

Main function

  • Hip
    • Lateral rotation

Secondary function

  • Pelvis
    • Contralateral rotation

Nerve innervation

  • Segmental
    • L3-L4
  • Peripheral
    • Nervus obturator

Arterial supply

  • Obturator artery

Obturator Internus

Position

  • Deep

Origin

  • Internal surface of the obturator foramen
  • Pelvic surface of ischium posterior
  • Obturator membrana
  • Obturator fascia

Insertion

  • Trochanter major, medial surface proximal to the trochanteric fossa

Main function

  • Hip:
    • Lateral rotation

Secondary function

  • Hip
    • Abduction
  • Pelvis
    • Contralateral rotation

Nerve innervation

  • Segmental
    • L5-S2
  • Peripheral
    • Plexus sacralis

Arterial supply

  • Superior gluteal artery
  • Inferior gluteal artery
  • Obturator artery

Inferior Gemellus

Position

  • Deep

Origin

  • Tuberositas ischiadicum, superior part

Insertion

  • Trochanter major femoris, medial surface

Main function

  • Hip:
    • Lateral rotation

Secondary function

  • Hip
    • Adduction
  • Pelvis
    • Contralateral rotation

Nerve innervation

  • Segmental
    • L5-S1
  • Peripheral
    • Plexus sacralis

Arterial supply

  • Inferior gluteal artery
  • Obturator artery

Superior Gemellus

Position

  • Deep

Origin

  • External surface of spina ischium
  • External surface of membrana obturator

Insertion

  • Trochanter major femoris, medial surface

Main function

  • Hip
    • Lateral rotation

Secondary function

  • Hip
    • Abduction
  • Pelvis
    • Contralateral rotation

Nerve innervation

  • Segmental
    • L5-S2
  • Peripheral:
    • Plexus sacralis

Arterial supply

  • Inferior gluteal artery

Quadratus Femoris

Position

  • Deep

Origin

  • Tuberositas ischiadicum, lateral part

Insertion

  • Crista intertrochanterica femoris, and section just inferiorly to crista intertrochanterica

Main function

  • Hip
    • Lateral rotation

Secondary function

  • Hip
    • Adduction
  • Pelvis
    • Contralateral rotation

Nerve innervation

  • Segmental
    • L5-S1
  • Peripheral
    • Plexus sacralis

Arterial supply

  • Inferior gluteal artery
  • Obturator artery